I totally see your point. That's why I added "I am not from the US" to signal "I don't live there, I don't know the in and out of this and I need the help of someone closer to the subject to help me grok it faster".
True, I could google for it but then I am on an hunt to discern the truths and the lies and to understand why someone lies or tells the truth to whom and how it is pertinent to the original request (and there's the bubble search, of course).
The thing is, I don't know - in that case - if it's obscure or not.
Plus, our comments aren't born in a vacuum. Parent likely has additional information or an outlook on the subject that I wouldn't find (or more likely find but likely dismiss because of a lack of context) in a 15 minutes google search.
Then, on the other hand, you actually have snipers around here who are quick to derail conversations by not participating, not giving information or sharing outlook and just shooting "Sources ?" and then never coming back to the thread.
You have to trust me on that one but I assure you I don't do that.
Now, asking for sources is most of time a given when someone makes extraordinary claims meant to shut an argument (eg: "X is bad 98% of time don't talk about X" when everyone was considering X safe from the get-go).
edit: I should have asked something like "Do you have an article to recommend that would shed some lights on this matter ?". The "Do you have sources ?" is a bit harsh and inquisitive, my bad.
edit (2): On the other hand, I clicked your link, without looking at the URL, thinking "ah cool, this person is telling me that in this case a simple google search will yield pertinent results. But all I got was a "fuck you, use google".